70145 Bore Master Door Lock Installation Kit with Carbide Spur Bits
Featuring an adjustable door boring fixture, this kit accommodates backset positions of 2-3/8” and 2-3/4” and works with wood doors ranging from 1” to 2-3/8” thick. A heavy-duty 1/2” hex drive quick-release drill adapter ensures smooth compatibility with your drill motor, while the 1-1/2” reducer ring provides versatility when using the 1-1/2” spur bit.